Question Number 130369 by gowsalya last updated on 24/Jan/21 Answered by Olaf last updated on 24/Jan/21 $$\Omega\:=\:\int_{\mid{z}\mid=\mathrm{1}} {xdz} \\ $$$$\Omega\:=\:\int_{\mathrm{0}} ^{\mathrm{2}\pi} \mathrm{cos}\theta{d}\left(\mathrm{cos}\theta+{i}\mathrm{sin}\theta\right) \\ $$$$\Omega\:=\:\int_{\mathrm{0}} ^{\mathrm{2}\pi}…
Question Number 64829 by Tawa1 last updated on 22/Jul/19 Commented by Tawa1 last updated on 22/Jul/19 $$\mathrm{God}\:\mathrm{bless}\:\mathrm{you}\:\mathrm{sir} \\ $$ Commented by Tony Lin last updated…
Question Number 130362 by greg_ed last updated on 24/Jan/21 $$\mathrm{f}\left({x}\right)=\frac{\mathrm{2}{x}+\mathrm{1}}{\:\sqrt{{x}^{\mathrm{2}} −\mid\mathrm{2}{x}−\mathrm{3}\mid}} \\ $$$$\mathrm{Domain}\:\mathrm{D}_{\mathrm{f}} \:=\:? \\ $$ Answered by ajfour last updated on 24/Jan/21 $${x}^{\mathrm{2}} >\mid\mathrm{2}{x}−\mathrm{3}\mid…
Question Number 64824 by Tanmay chaudhury last updated on 22/Jul/19 Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 130358 by ajfour last updated on 24/Jan/21 Commented by ajfour last updated on 24/Jan/21 $${Two}\:{identical}\:{ellipses}. \\ $$$${Find}\:{maximum}\:{value}\:{of}\:{b}/{a}. \\ $$ Commented by MJS_new last…
Question Number 64823 by Tanmay chaudhury last updated on 22/Jul/19 Commented by Tanmay chaudhury last updated on 22/Jul/19 $${pls}\:{try}\:{to}\:{solve}\:{the}\:{above}\:{two}… \\ $$ Commented by mr W…
Question Number 64820 by mathmax by abdo last updated on 22/Jul/19 $${calculate}\:\sum_{{n}=\mathrm{1}} ^{\infty} \:\:\frac{\left(−\mathrm{1}\right)^{{n}} }{{n}^{\mathrm{2}} \left({n}+\mathrm{1}\right)\left({n}+\mathrm{2}\right)} \\ $$ Commented by mathmax by abdo last updated…
Question Number 130354 by greg_ed last updated on 24/Jan/21 $$\mathrm{f}\left({x}\right)=\frac{\mathrm{4}{x}^{\mathrm{2}} +\mathrm{1}}{\mathrm{2}{x}^{\mathrm{2}} +\mathrm{1}} \\ $$$$\mathrm{prove}\:\mathrm{that}\:\mathrm{1}\:\leqslant\:\mathrm{f}\left({x}\right)\:\leqslant\:\mathrm{2} \\ $$ Answered by MJS_new last updated on 24/Jan/21 $${f}\left({x}\right)=\mathrm{2}−\frac{\mathrm{1}}{\mathrm{2}{x}^{\mathrm{2}} +\mathrm{1}}…
Question Number 64819 by mathmax by abdo last updated on 22/Jul/19 $${calculate}\:\sum_{{n}=\mathrm{1}} ^{\infty} \:\:\:\frac{\left(\mathrm{2}{n}+\mathrm{1}\right)\left(−\mathrm{1}\right)^{{n}} }{{n}^{\mathrm{3}} \left({n}+\mathrm{1}\right)^{\mathrm{2}} } \\ $$ Commented by mathmax by abdo last…
Question Number 64818 by mathmax by abdo last updated on 22/Jul/19 $${find}\:\int\:\:\:\frac{{dx}}{\mathrm{1}+{cosx}\:+{cos}\left(\mathrm{2}{x}\right)} \\ $$ Commented by mathmax by abdo last updated on 22/Jul/19 $${let}\:{I}\:=\int\:\frac{{dx}}{\mathrm{1}+{cosx}\:+{cos}\left(\mathrm{2}{x}\right)}\:\Rightarrow\:{I}\:=\int\:\frac{{dx}}{\mathrm{1}+{cosx}+\mathrm{2}{cos}^{\mathrm{2}} {x}−\mathrm{1}}…